The United States is relocating the HIMARS unit that was in Estonia to Lithuania.
HIMARS are mobile rocket launchers.
Defense Minister Hanno Pevkur said this was planned from the beginning.
The HIMARS unit stayed in Estonia longer than planned.
Now the HIMARS unit is moving to Lithuania to do the same work there.
In its place, a US tank unit will arrive in Estonia.
Pevkur said the tank unit will provide Estonia with additional strength.
The size of the tank unit will be revealed in September.
Estonia purchased six HIMARS systems. They arrived in April.
US assistance to Estonia has been very important.
It has helped strengthen the Estonian Defense Forces.
For example, Estonia has received HIMARS, Javelin anti-tank missiles, and electronic systems.
Pevkur said US assistance is symbolically very significant.
He added that the US Congress must decide whether to continue the assistance.
Estonia has planned its defense development long-term.
When possible, Estonia also accepts foreign assistance.
US assistance to Estonia has tripled over the past three years.
This assistance is useful, for example, for replenishing ammunition stocks and improving communication capabilities.